Powervalve problem?

[andydunne]

Hey guys, I took the head off my bike today for the first time since I got it just to have a look. When I did so, I noticed a few things a miss, here is what the head looked like, with the exhaust valve(blue) sitting way off, is it hard to see how this bike was running fine??


Here is what the intake(red), exhaust(blue) valves looked like when i took them out, the teeth on both of them are very worn and chipped! The gear marked green wasnt chipped or damaged at all btw!


And here is what underneath the exh. valve looked like when I took it out, the piece of metal underneath the exh. valve looked melted and is jammed in a port to the exhaust pipe?


Now I know little or nothing about how this stuff works only presuming it involves the powervalve? But surely the above is not right, I could see the little bar/slider the valves were supposed to lock into but in their shape they were surely missing this bar/slider alot of the time!
So can anyone shed some light on whats going on and will the above be affecting my bikes performance?

[Friar-Tuck]

 
 Umm.. Yes...I think your bike has a few issues that need to be addressed..
  I think I have some pages from a manual that my help.. Let me see if I can find them.
 Tuck\o/

http://www.kxriders.com/coppermine/displayimage.php?album=lastup&cat=1&pos=67

http://www.kxriders.com/coppermine/displayimage.php?album=lastup&cat=1&pos=71

http://s69.photobucket.com/albums/i75/Friar-Tuck/KX%20500/Kips%20Valve/

[1989kawasaki]

good thing you can still get new valves from kawasaki. and they are like $40 ~ each

[andydunne]

Thanks Tucko that gives me a better understanding now of what is going on, a few parts have most definitely had their long life ha!
Yes 1989kawasak, I seen that on the Kawi website, not too bad at that price imo. So with that I hope to order new ones from my local Kawi dealer tomorrow! It will be back running in no time not that it wasnt running well, I was at the track recently and the bike never missed a beat all day and always has rode perfect. Hopefully more power when its sorted

[Friar-Tuck]

Andy are you able to get a service manual?
  I think K-wack mentioned a european E-bay of some sorts you may be able to find a used one.  The Kawasaki service manual might even be cheaper from your dealer if you don't have to pay shipping.  It will be well worth you money and can be recouped if you decide to sell the bike later...
  There are several pages of those books if you spend some time snooping around the links in the prev post.
I'm pretty Daft when it comes to computer stuff so the pages aren't in order, you have to look around...
       Tuck-O \o/ 

[andydunne]

New valves have been ordered hopefully will have them next weekend

Andy are you able to get a service manual?
  I think K-wack mentioned a european E-bay of some sorts you may be able to find a used one.  The Kawasaki service manual might even be cheaper from your dealer if you don't have to pay shipping.  It will be well worth you money and can be recouped if you decide to sell the bike later...
  There are several pages of those books if you spend some time snooping around the links in the prev post.
I'm pretty Daft when it comes to computer stuff so the pages aren't in order, you have to look around...
       Tuck-O \o/ 

No I havent even looked for one Tucko, might be handy to get one though!
Here is a few I seen on ebay;
http://www.ebay.com/itm/120606255525?_trksid=p3984.m1423.l2649&item=120606255525&cmd=ViewItem&sspagename=STRK:MEWAX:IT&vxp=mtr
http://www.ebay.ie/itm/330629304132?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
http://www.ebay.com/itm/160605500707?_trksid=p3984.m1423.l2649&item=160605500707&cmd=ViewItem&sspagename=STRK:MEWAX:IT&vxp=mtr

Im not sure if any of them are any use, is a service manual and a owners manual the same thing?
 

[1989kawasaki]

New valves have been ordered hopefully will have them next weekend

Andy are you able to get a service manual?
  I think K-wack mentioned a european E-bay of some sorts you may be able to find a used one.  The Kawasaki service manual might even be cheaper from your dealer if you don't have to pay shipping.  It will be well worth you money and can be recouped if you decide to sell the bike later...
  There are several pages of those books if you spend some time snooping around the links in the prev post.
I'm pretty Daft when it comes to computer stuff so the pages aren't in order, you have to look around...
       Tuck-O \o/ 

No I havent even looked for one Tucko, might be handy to get one though!
Here is a few I seen on ebay;
http://www.ebay.com/itm/120606255525?_trksid=p3984.m1423.l2649&item=120606255525&cmd=ViewItem&sspagename=STRK:MEWAX:IT&vxp=mtr
http://www.ebay.ie/itm/330629304132?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
http://www.ebay.com/itm/160605500707?_trksid=p3984.m1423.l2649&item=160605500707&cmd=ViewItem&sspagename=STRK:MEWAX:IT&vxp=mtr

Im not sure if any of them are any use, is a service manual and a owners manual the same thing?
 

no, service is not the same as owners

[andydunne]

Thanks mate, Ill keep an eye on that

[jonny500]

Hey guys, I took the head off my bike today for the first time since I got it just to have a look. When I did so, I noticed a few things a miss, here is what the head looked like, with the exhaust valve(blue) sitting way off, is it hard to see how this bike was running fine??

if you think it was running fine like that your in for a nice surprise when you get it fixed

[kwakman]

andy, I would advise buying a clymer manual(this is a generic KX manual, covering all capacities), and then a yr specific genuine Kwak kx125 manual, and they do a tuning (general, not porting stuff) manual too, also yr and model specific..if you cant find em (ebay search, set to worldwide) gizza shout and I'll have a gander. you should have most of the bed time reading you'll ever need.K.

[andydunne]

Hey guys, I took the head off my bike today for the first time since I got it just to have a look. When I did so, I noticed a few things a miss, here is what the head looked like, with the exhaust valve(blue) sitting way off, is it hard to see how this bike was running fine??

if you think it was running fine like that your in for a nice surprise when you get it fixed

Ye I hope so, I have a 50 toooth sproket ordered also so it  with the new valves  should be different anyway

[andydunne]

andy, I would advise buying a clymer manual(this is a generic KX manual, covering all capacities), and then a yr specific genuine Kwak kx125 manual, and they do a tuning (general, not porting stuff) manual too, also yr and model specific..if you cant find em (ebay search, set to worldwide) gizza shout and I'll have a gander. you should have most of the bed time reading you'll ever need.K.

Thanks fot that mate

[andydunne]

I removed what was left of the subvalves, the one on the right was wedged between the shaft it sits in and the exhaust port, here is how they look

[Friar-Tuck]

  Eee Gads Mate!
    X's 2 on having a surprise when you get the girl back on her feet. 
   Tuck\o/

[andydunne]

Oh stop, they are in a state.
I ordered a clymer service manual earlier too, it might educate me a bit